Tube amp that rocks. We have it now (again). It uses KT88, pushpull configuration, UL fixed bias, solid state rectified (It has to be if you want it to really rock). Power output is 50 watts per channel, to tal 100 watts. Whats more ,coming out very soon, the rebirth of our 100 watts per channel power amplifier with 4 pairs El34 in fixed bias.